Toolholders Offer Firm Grip on Progress

May 1, 2018

Both CoroTurn A-type and B-type inserts can be mounted together on Sandvik Coromant's CoroTurn Twin toolholder for multitask machines.

Sandvik Coromant has unveiled a range of CoroTurn Prime multi-task and axial type toolholders to help machine shops implement the new PrimeTurning methodology, which enables turning in all directions. The introductions allow users to maximize the benefits of PrimeTurning on multitask turn-mill centers and vertical turning lathes (VTLs).

One of the highlights of the range is the CoroTurn Prime Twin toolholder for multitask machines. Both CoroTurn Prime A-type and B-type inserts can be mounted together on Twin toolholders, allowing manufacturers to undertake roughing with a B-type insert before switching to finishing with an A-type insert, for example.

"Modern multitask machines are intended for the complete machining of components but typically have a slow tool changing time, often around 15-20 seconds," said Håkan Ericksson, Product Manager General Turning at Sandvik Coromant. "As a result, the new Twin toolholder will save customers a considerable amount of time when changing tools."

As a further advantage, B-axis machining on multitask machines allows the operator to program the angle of the tool in precise increments. When the machine cuts using its B-axis, more accessibility is created using neutral holders. "In combination with streamlined operations, this accessibility delivers the potential for huge time savings and productivity increases to help manufacturers reduce tooling inventories and achieve competitive gains," said a company spokesperson.

Six new multitask toolholders are being introduced, which are mounted at a 45° angle for B-axis machining, and can be used with either CoroTurn Prime A-type or B-type inserts. Options for multitask machines include four toolholders (one-insert only) and two Twin toolholders (two inserts). The CoroTurn Prime Twin toolholder is available for use with Coromant Capto C5 - C8 size.

A range of axial toolholders for VTLs is also part of the range, which means that Sandvik Coromant now has a complete offer for PrimeTurning: axial, radial and multitask toolholders. In total, eight dedicated toolholders for axial mounting are being launched. This type of toolholder is compatible with most types of vertical lathes and available in Coromant Capto for use with either CoroTurn Prime A-type or B-type inserts.

Although PrimeTurning is applicable to the entire general turning area, machine shops with large batch sizes (automotive) are set to benefit most, as will those machining large components (aerospace) where there is a need to reduce tool changes, set-up time and production stops.

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